Built-up jacket for jordan-engine plugs



March 16,1926. f1,5 76,504

A. LE R. BOLTON BUILT UP JACKET FOR JORDAN ENGINE PLUGS Filed Feb. a, 1923 ZSheets-Sheep 1 -A TTORNE Y.

March 16 1926. 1,576,504 A. LE R. BOLTON V BUILT UP JACKET FOR JQRDAN ENGINE PLUGS I Filed Feb. 8, 192; 2 Sheets-Sheet 2 5/ //Z 1 lllllz. :1 ,Il/ A l- //3 3- M INVENTOR.

BY/ I v ATTORNEY.

Patented Mar. 16, 1926.

U ITED STATES. PATENT "OFFICE.

- ARCHER E novBon'roN, or NORTH 'Annov-nn, mnssncno'snr'rs.

-IB'UIIII' I'JF JACKET FOR JORDAN-ENGINE PLUGS.

Application filed February a, 1923. Serial No. 617,811. f

Built-Up Jackets for J ordan-Engine Plugs,

of which'the following is a specification.

This invention relates to that part of a Jordan engine for refining paper stock known as the plug. In such engines, there is an outer shell of truncated conical form with knives which project inwardly, and

on' a shaft, axially disposed through the shell, is fixed what is known as a plug which I carries on its outer truncated .conical face but resi iently keep .thebars'in what are known as bars which cooperate with the knives in treating the paper stock.

The plug body generally consists of a truncated hollow metal shell, often having longitudinal grooves, fixed. between heads attached to the shaft, or of a series of spiders, often having longitudinalgrooves which are properly aligned, such spiders being of successively increasing or decreasing diameter as fixed to the shaft.

In the longitudinal grooves, which may be of various cross sect onal form, bars are placed and fastened in-different ways, and,

between these bars, wedge-shaped woods of key-sha ed cross section are forced to firmly position. There are other types of p ug bodies in which there are no grooves, 'to which bars and woods are fastened in various ways. Some of these are shown herein.

I am' alsg aware that jackets made entirely of metal with projecting inte a1 rectangular lugs serving the purpose 0 knives,

such jackets being of truncated conical form, have been used 1n place ofthe knives and woods. l D

Wherever knives and woods are used, from time to time they wear or break, and the plug bod must be removed front the engine so t at the old knives and woods can be removed and new ones put in their places This can be done either at the paper mill or else the plug .partmust be sent out to a machine shop, during' which time the engine is outofusef 'Thepurpose of ,a remova le jacket is to reduce the time necessary for replacingworn out or broken wearin surfaces.

'My invention broadl be built up by expert workmen at the shop y is a jacket for Jor-i -used with said bar.

dan engine plugs which is built up of bars separated by woods, and means by which they are held together in such manner that the whole jacket can behandled as a unit, shipped, and readily be put in place or removed.

More specifically, I claim the particular type of such jacket. l

A great advantage is" that the jacket can where the bars and knives are made and then shipped-as a complete unit so that-it can be quickly put in place at the paper mill by any ordinary mechanic, which is lighter and which has many other advantages over the all metal type, as is well understood by those skilled in the art of making paper. 1 I

7 It can also vbe built up with bars of hard steel bronze or other metal with more or less of cheaper, softer, all metal construction or very expensive hard metal'construction.

A new "set of knives and woods may be installed'in this jacket either at the mill or elastic woods between instead of beihg all machine shop, or the series of rings forming so the body of the jacket may be returned to the factory in a comparatively small package and the new knives and 'woods installed in them by skilled workmen. Moreover, -if

only one ring of the jacket body isworn or 35 damaged, it can be repaired or replaced without affecting the others. The plugs in ordinary use can readily *be adapted to receive my built-up jacket.

In the drawings, Figure 1 is a sectional elevation of a Jordan engine shaft carrying a plug body of shell form shaped as a hollow truncated cone, with my preferred form of jacket in place. I

Fig. 2 is a view of (Part of the same jacket shown ,in Fig. 1, an

Fig. 3 is a view 0 one of my body rings removed, as from the large end of the plug.

44 of Fig. 3.v

Fig. '5 is, across section on line 55 of Fig. 1,'with a metal protecting strip added.

F1 6-is an enlarged cross section as on the'hne 6-6 of'Fig. 5, but showing a spider or skeleton constrhction for the plug body.

of the In body as .-viewed from the lar e end. g

F g. 4' is an enlarged cross section on line 1 this annular shoulder 21 tudinal slots Fig. 9 is an enlarged sectional elevation showing the way the plugand jacket Fig. 14 is a section on line 14-14 of Fig. 3

Fig. 15 is a section similar to Fig. 13 showing another method of fastening bars to a jacket spider.

Fig. 16 is a view similar to Fig. 13' of another .method of fastening bars to the-jacket, and the jacket to the plug bod L Fig. 17 is a View similar to lg. 13 of my jacket built up with woods and withbars which are curved, spiral, or set diagonally, as described and claimed in applications pending herewith. In the drawings, A represents the shaft into which is fastened in any suitable manner as by a drive fit at 5 the plug body B of shell construction and truncated conical form. This is shown as having at its large end ahead D cast integral therewith. Q

On the outside, this plug body is smooth except for a series of lugs 10 which project outwardly therefrom. This plug body may remain on the shaft A when the jacket now to be described. is removed or replaced.

My preferred form of jacket comprises a series of metal rings of sizes to correspond with the outer surface of plug body B arranged so that when in position they will conform'to the conical surface. of the plug I Each ring C has one or more recesses 19 into which a In 10 is adapted to fit.

Each ring C 15 also cut away.to form a shoulder 21, as shown in Fig. 4, and on to is shrunk a holdmg ring F.

Each ring. 0 also has a plurality of longi- 22 each of a. size to. receive a bar G.

, Each bar G is shown as of substantially at 31, 32, 33 and 37, leaving apart 30 projecting down below the rest to a line corresponding with the outer face of plug B. The part 33 is of a height to reach up over a holding rinlg F, and the parts areso cut that there wi be at the large end a slot 34 which passes under the holding ring F at the large end and other cut-away parts 35-and 36 forming tangs 138 which pass under holding rings F. At the small end is a tang or tail 39 which exjends under the holding ring F at the small end, which may be put in position after the bars and the woods- H between them are built up in the machine shop. v

This jacket is put togetherv at the machine shop, where it is manufactured, by being placed on a form of a shape corresponding with the plug body B, the rings C being first put in place, all but the small one hav ing the holding rings F shrunk on. After this the bars G and woods H are put in position in the usual manner, and when this is finished the holding ring F at the small end is shrunk in position thereby holding the whole structure together.

I prefer also to use a protecting metal strip K positioned on top of the woods in a manner similar to what is shown in my application for patent pending herewith,cov-

'ering for plug of Jordan engine, Serial No.

609,409, Dec. 28, 1922, and my patentNo. 1,507,305 of Septl 2, 1924. This 'not only protects the woods from the liquid in. the machine but adds great strength and stiffness to the whole jacket.

The jacket is fastened in position by means of the lugs 10 and the corresponding recesses 19 which prevent any turning with refer ence to the plug body, and by a plate wash er 40 sli ped over the shaft A up against the small end of the plug and jacket and held place by means ofa lock nut 41 which screws on to threads 3 on shaft A.

If the plug body, instead of being a continuous shell as shown at B, is of skeleton construction as shown at B, Fig. 11, built up of a series of spiders extending from the large end 11 and the middle spiders 12 to the small end spider 13, some or all the six spiders are provided with outwardly extending lugs 113 corresponding with'lugs 10.

It is obvious that my jacket can be slipped in place over such a skeleton plug body as indicated in Fi 6 just as readily as over the type of plug y'shown at B. c

-One of these spiders 12 is shown in Fig. 12 as being keyed to shaft A by means of a key 4, but they may be attached in any well 7 known manner.

If it is desirable, as shown in Fig. 10, instead of the body rings C with no connections except the bars G and, the woods rectangular'form and is shown as cut away H rings may be used, such as 90, with suitable slots 91 fastened bybrazin riveting or otherwise, to athin shell-like o a form to fit the plug body, and this may be fastened to-the plug body 93 by means of screw 94. I

In Fig. 13,- I show a shell -like plug body B, with ugs 10 and a jacket M in which are dovetailed grooves 60 in which fit similarly shaped edges of the bar 62. This dovetailing holds the bars in position while the woods 63 keep them apart. f J I dy 92 of In Fig. "15, I show a jacket body N made up of rings 70 each of which has a recess 71 on the inside, and on the outside lugs 72 .which are recessed at 73 to fit ribs 75 on one side of bar 74, while corresponding ribs 75 on the other side fit suitable grooves 77 in ,the woods 76. 78 represent thinner woods which fit over the outside of lugs 72.

In Fig. 16, I show another construction in which 87 represents the plug body of either form and 86 represents the jacket body of either form, with outwardly projecting lugs 80 to which the bars 81 are fastened by means of bolts 82 and separated by woods 83 and 85 of suitable shape, the jacket 86 being fastened to the plug 85 by screws 84. f

It is to be clearly understood that my jacket may be of skeleton ring form or may ham a continuous metallic inner surface,

and that the plug body may be of skeleton form or have a continuous metal outer surface. a

I claim to be the first to devise a readily removable and detachable jacket built up of bars and woods, with suitable connecting means whereby it forms a unitary construction.

In the claims, means to fasten includes lugs 10 and 113, recesses 19, washer 40, nut

41, screws 84, 94, or any other similar devlces.

I may use woods and bars the faces of which are relatively straight and'the sides of which lie each in a fiat plane or, as shown in Fig. 17, I may use a set of bars 101 which are curved spirally or otherwise or are set diagonally to the axis of the plug. The grooves 100 and corresponding woods 102 are shaped to correspond with the bars.

I claim:

1. In a Jordan engine, the combination of a drive shaft, and a conical plug body car rled thereby having projecting lugs; with a jacket removable from the plug body built up of a body consisting .of rings of different sizes, arranged to form a skeleton cone each having a recess engaging one of said lugs, an annular recess and a plurality of axial slots, a holding ring fixed in said annular recess, a plurality of bars fitted in said slots and under each holding ring, and woods between said bars. v y

2. In a Jordan engine, the combination of a drive shaft, and a conical plug body carried thereby; with a jacket removable from the plug body built up of a conical body memberhaving annular recesses and a plurality of axial slots, a holding ring fixed in each annular recess, a plurality of bars fitted in said slots and under each holding ring, and woods between said bars, together sigh means to fasten said jacket to the plug 3. In a Jordan engine, the combination of a conical plug body with a unitary transportablejacket built up of a body, a plurality of bars fastened thereto, woods between said' bars, and means to fasten said jacket to the plug body.

4. A unitary transportable jacket for Jordan engine plugs built up of a body, a plurality of bars fastened thereto, and

' woods between said bars.

5. In a Jordan engine,'a unitary transportable acket built up of a body consistmg of holding rings of difierent sizes ar ARCHER LE ROY BOLTON. 

